Numerical Method for Particulate-Induced High-Speed Boundary-Layer Transition Simulations

Browne, Oliver M.; Hasnine, Sayed Mohammad Abdullah Al; Brehm, Christoph

doi:10.2514/1.j059544

Cited by 21 publications

(14 citation statements)

References 21 publications

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“…It should be noted that, for high-speed flows, Basset history, a pressure gradient and an added mass effect may also govern the particle dynamics (Regele et al 2014). These forces are found to be less dominant for the current study (see Browne et al (2021) for details). As stated in Chuvakhov et al (2019), the assumption of quasi-steady interaction is valid for ρ p c D ρ, which is the case for the current simulations except during the impingement phase.…”

Section: Particle-source-in-cell Simulation Approachmentioning

confidence: 63%

“…It should be noted that the solutions of the NLDE in its full form can be considered as a DNS, given that sufficient grid resolution is applied, since no assumption has been made with respect to the disturbance type or its spatio-temporal evolution, i.e. all linear and nonlinear stages of the transition process can be accurately simulated (see Browne et al (2021) for detailed validation efforts).…”

Section: Nonlinear Disturbance Flow Formulationmentioning

confidence: 99%

“…Particles of different sizes are present in the atmosphere (Turco 1992;Habeck et al 2022) and by interacting with the flow field they may introduce sufficient disturbance energy to cause the flow to transition from laminar to turbulent, as illustrated in figure 1. Particle-induced disturbances in high-speed boundary layers have only recently been investigated by Fedorov & Kozlov (2011), Fedorov (2013, Chuvakhov, Fedorov & Obraz (2019), Browne et al (2020b); Browne, Hasnine & Brehm (2021, 2019b and . Fedorov & Kozlov (2011) and Fedorov (2013) conducted theoretical studies where they formulated an initial value problem considering a particle-induced disturbance source represented as a Gaussian function in the framework of biorthogonal decomposition (BOD).…”

Section: Introductionmentioning

confidence: 99%

“…Following this initial purely theoretical work, Chuvakhov et al (2019) performed numerical simulations to confirm these findings. Thereafter, an efficient approach to simulate particle-induced transition was devised by Browne et al (2021) who solved the compressible Navier-Stokes equations (CNSE) in nonlinear disturbance flow form and employed adaptive mesh refinement (AMR) to track the disturbances in the flow field. Browne et al (2020b) also conducted fully resolved particle simulations to demonstrate that the particle-source-in-cell (PSIC) approach is able to capture the dominant disturbance flow features in the initial linear receptivity stage.…”

Section: Introductionmentioning

confidence: 99%

“…Browne et al (2020b) also conducted fully resolved particle simulations to demonstrate that the particle-source-in-cell (PSIC) approach is able to capture the dominant disturbance flow features in the initial linear receptivity stage. The PSIC approach has also been employed in the two prior direct numerical simulation (DNS) studies by Chuvakhov et al (2019) and Browne et al (2021). Russo et al (2021) conducted particle-induced transition simulation on a blunt cone and showed some evidence that transient growth can be triggered by particle impingement.…”

Section: Introductionmentioning

confidence: 99%

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Biorthogonal decomposition of the disturbance flow field generated by particle impingement on a hypersonic boundary layer

A. Al Hasnine,

Russo,

Tumin

et al. 2023

J. Fluid Mech.

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The disturbance flow field in a hypersonic boundary layer excited by particle impingement was investigated with a focus on the first stage of the laminar-to-turbulent transition process, namely the receptivity process. A previously validated direct numerical simulation approach adopting disturbance flow tracking is used to simulate the particle-induced transition process. Particle impingement generates a highly complex disturbance flow field that can be characterised by a wide range of frequencies and wavenumbers. After providing some insight about the spectral characteristics of the disturbance flow field in the frequency and wavenumber domains, biorthogonal decomposition is employed to reveal the composition of the disturbance flow field consisting of different continuous and discrete eigenmodes that are triggered through particle impingement. The disturbance flow characteristics for different frequency and wavenumber pairs are discussed where large contributions in the disturbance flow spectrum are observed in the vicinity of the impingement location. A significant amount of the disturbance energy is diverted into the free stream leading to large coefficients of projection for the slow and fast acoustic branches while contributions to the entropy and vorticity branches are negligible. In addition to the continuous acoustic spectra, the first-, second- and other higher-order Mack modes are activated and provide large contributions to the disturbance flow field inside the boundary layer. Finally, it is demonstrated that the disturbance flow field in the vicinity of the impingement location can be reconstructed with a maximum relative error of $2.3\,\%$ by employing a theoretical biorthogonal eigenfunction system expansion and by considering contributions from fast and slow acoustic waves and at most four discrete modes only.

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Section: Particle-source-in-cell Simulation Approachmentioning

confidence: 63%

Section: Nonlinear Disturbance Flow Formulationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Biorthogonal decomposition of the disturbance flow field generated by particle impingement on a hypersonic boundary layer

A. Al Hasnine,

Russo,

Tumin

et al. 2023

J. Fluid Mech.

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A nonlinear compressible flow disturbance formulation for adaptive mesh refinement wavepacket tracking in hypersonic boundary-layer flows

Browne¹,

Haas²,

Fasel³

et al. 2022

Computers & Fluids

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Dynamic large-eddy simulation of hypersonic transition delay over broadband wall impedance

Sousa,

Wartemann,

Wagner

et al. 2024

J. Fluid Mech.

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Three-dimensional numerical simulations of hypersonic boundary layer transition delay due to porosity representative of carbon-fibre-reinforced carbon-matrix ceramics (C/C) were carried out on a 7 $^{\circ {}}$ half-angle cone for unit Reynolds numbers $Re_m=2.43 \times 10^6$ – $6.40\times 10^6\ \text {m}^{-1}$ , at the free-stream Mach number $M_\infty =7.4$ , for both sharp and 2.5 mm nose tip radii. A broadband time-domain impedance boundary condition was used to model the acoustic effects of the porous surface on the flow field. A quasi-spectral sub-filter-scale dynamic closure was adopted to stabilize the computations upon turbulent breakdown under extreme cooling conditions, with wall-to-adiabatic temperature ratio of $T_{w}/ T_{ad} \simeq 0.08 $ , while accurately recovering the growth rates of the unstable modes present in the early transition stages. Good agreement is observed with the reference experimental data, both in terms of the predicted extent of the transition delay and the measured second-mode frequency spectrum. The latter is strongly modulated by the formation of near-wall low-temperature three-dimensional streaks. Pressure disturbances concentrate in corridors of locally thickened boundary layer, with frequencies lower than what predicted by linear theory. Here, trapped wavetrains are formed, which can persist long into the turbulent region. Finally, it is shown that the presence of a porous wall simply shifts the onset of turbulence downstream, without affecting its structure.

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Numerical Method for Particulate-Induced High-Speed Boundary-Layer Transition Simulations

Cited by 21 publications

References 21 publications

Biorthogonal decomposition of the disturbance flow field generated by particle impingement on a hypersonic boundary layer

Biorthogonal decomposition of the disturbance flow field generated by particle impingement on a hypersonic boundary layer

A nonlinear compressible flow disturbance formulation for adaptive mesh refinement wavepacket tracking in hypersonic boundary-layer flows

Dynamic large-eddy simulation of hypersonic transition delay over broadband wall impedance

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